Lock for window sashes and doors



Aug. 1', 1933.

LOCK FOR WINDOW SASHES AND DOORS Filed July 8, 1932 2 Sheets-Sheet l [,5 $2356 f0 12 lQinoeZ/Zib,

J. A. RICCELLI 1,920,669

1933- J. A. RICCELLI 1,920,669

LOOK FOR WINDOW SASHES AND DOORS Filed July 8, 1932 2 Sheets-Sheet. 2

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tached thereto. l Fig. 7 is a sectional plan taken on line 7 7,

Patented Aug. 1, 19 33 I V UNITED STATES 1,920,669 a LOCK iron wmnow SASHES. AND nooks Joseph A. Riccelli, Cambridge, Mass. Application July 8, 1932. Serial No. 621,327"

3 Claims. (01. 293-4351 tion illustrated in Figs. 1, 2 and 4, and. the stop 26 This invention relates to an improved lock for window sashes and for doors, one object" of the invention being to provide a lock for. window sashes which will lock the sashes together when they are both closed, or which will lock them to gether when they are partly open.

Another object of the invention is to provide a lock of the character set forth which can only be operated by a special key, so that even if the Window pane were to be broken the lock could not be manipulated by the burglar without the specialkey. l

The invention consists in a lock for window sashes or doors of the character set forthin the following specification and particularly pointed out in the claims. 1 w Referring to the drawings:'

Fig. 1 is a plan view broken away and partly shown in section illustrating the look as applied to an upper and lower window sash.

Fig. 2 is a sectional elevation taken on line, H

r tion 1'] of the screw 14.

2 2,Fig.l. f Y

Fig. 3 is a front elevation of that portion 01' the lock which is attached to the lower window sash or to the door. V

Fig. 4 is an enlarged sectional elevation taken on line 4'4, Fig. 3, with a special key inserted in thelock. Q Fig. 5 is a perspective view of the special key.

Fig. 6 is a front elevation of a portion of a door and door frame illustrating my improved lock at- Fig. 6.

Like numerals refer to like parts throughout the several views ofthe drawings.

In the drawings, Figs. 1 to 5 inclusive, 10 is the lower sash of a window and 11 the upper sash 12 is a bracket fastened by screws 13 to the lower.

sash. A locking screw 14 has screw-threaded engagement with the bracket 12 and its forward end portion 15 is preferably not screw threaded and is of less diameter than the screw-threaded portion 16 of the screw14. The rearward portion 17:

of the screw 14'is tapered outwardly at 18 from the screw-threaded portion 16, whereby the diameter of the rearward end portion of the screw is enlarged and an annular groove 19 is provided the rearward end portion 17 of the screw 14 when the screw is in the advanced and locking posiwill drop into the annular groove 19 and thus lock the screw against longitudinal movement in the bracket when the key is removed. l 'ij v The rearward endportion 17 of thescrew has a rectangular recess 21 therein to receive the rectangular portion 22 of a specialkey- 23," whereby the screw 14 may be rotated by said key. The rearward end portion 17 of the screw 14 is also provided with a slot 24 which extends across the annular groovfe'19 and is adapted to receive a projection 25 on the key 23, so that by inserting the key in the recess 21 the projection 25 on the key will at the same time enter the slot 24 and engage thev lower endof the stop 20 fo'rcing'it up out of the annular groove so that the key can then be turned to rotate the-screw. 14.

23 is bevelled at 25" sothat when the'key is ins'erted in the slot 24 -the outer edge of the'key will be flush with the taperedrearward end por-- The stop 20 maybe locked in the'position illus-. trated inFig. 4, that is, removed from the annular groove 19, or it may drop down 'and be locked insaid-annular groove, by means of a set screw 26, thatis, assuming the stop 20, to be in its lower position and projecting into the annular groovel9, then it may be locked in that position by tightening the set screw 26 which has screw-threaded engagement with the bracket 12 or the screw 26 may be loosened, the'key, 23 inserted inthe rearwardjend of the screw, whereupon the projection 25 will push the stop 20 upwardly out of, the annular groove "19 and the set screw can then again be tightened to "lock, said'stop in its upward position as in Fig. 4.

[The reducediorward end portion 15 ofgthe screw 14 is pointed at 27 and may be utilized by the rotation of said screw 14'to bore holes at difierent distances in the side member 28 of the sash 11;. A sleeve 29 may be driven into the hole previously bored by'the screw in the side member 28' of the sash 'by turning the screw to advance the same by means of the key 23, the

diameter of the bore of the. sleeve beingiless of the screw andvslightly greater than the di% ameter of said forward endportion 15.

In Fig. 2 the sashes are shown locked together in this manner and in said figure another sleeve .than the diameterof thefscrew-threaded portion t 29' is shown above the sleeve 29, so that the screw 14 can be turned backwardly by means of the key 23 to disengage it from the sleeve 29, and then the lower sash can be moved up- .wardly or the upper sashcan be moved downwardly until the reduced end portion of the screw is in alignment with the bore of the sleeve 29 and then the screw 14 can be advanced and the sashes locked together when partly open.

In Figs. 6 and 7 my improved lock is illustrated as attached to a door and door casing,

and referring to these figures 39 represents a portion of a door and 31a portion ofa door casing. A bracket. 32is fastened to thedoor and this bracket has a screw 33 therein which is substantially the same as the screw 14 illustrated in Figs. 1, 2, 3 and 4, the same being provided with fastened to the'door casing 31.

- said'brackets and thescrew 33 in looking the 'door to the casing.

When used on a door, the bracket 32 is preferably provided with an eye 40] and the bracket 39 with an eye 41, whereby a chain 42oan be utilized to connect said eyes and thus allow the door to be partly opened" in a well-known manner. 7

When the two brackets-32 and 39 are used for the" purpose of locking window sashes, they are positioned between the vertical members-oi the sashes, that is, the bracket 39 is fastened to the lower rail of the upper sashbetween the vertical side members and the bracket32 is fastenedto the upper rail of the lower sashwith.

the screw 33 in alignment with the hole 33in the bracket 39. "Ihen the screw is operated" to cause the reduced end thereof to enter the bracket 39 and is locked in advanced position the same as hereinbefore described in relation to the em bodiment ofmy inventionillustrated in Figs. 1, 2,3and4. The general operation of the deviceshereinbefore specifically and to a considerable extent in generaldescribed is as follows:' In the-form of the invention illustrated in Figs. lto 5 inclusive, assuming the sleeves 29 and 29 to have been inserted in the side member 28 oijthe uppersash I 11 and it is desired to lock the sashes in closed position as illustrated in Fig. 2, then thescrew 14 is advanced by means of the key 23 1 30 the position illustrated in Figs. 1, 2 and 4,,the set screw 26 is loosened during the movement of the screw 14 from its retracted position to its for-1 ward position, and when the screw has been sufii ciently far advanced to bring the annular groove 19 into alignment with the stop 20 then the stop will drop into the annular groove, when the key- 23 is removed and the set screw 26 may then be tightened.

Tounlock the window, the key 23is inserted in the screw 14; therectangular portion 22 projecting into the rectangular recess 21 in the end of the screw 14 and the projecting portion 25 of the key operating to push the stop upwardly out of the annular groove, the set screw 26 having been loosened meantime to enable this to be done; Then the screw is rotated by the key to retract the same and withdraw the end portion 15 from I I the sleeve 29, whereupon the lower window sash 10 can be moved upwardly or the upper window sash 11 can be moved downwardly to any desired position, but if desired to lock the sashes when partly open, then one of the sashes is moved until the reduced forward portion of the screw 14 aligns with the'bore of the sleeve 29', whereupon the screw 14 is advanced by means of the key 23 and locked in advanced position'by the stop 20 and by the set screw 26'as hereinbefore described.

The operation of locking the door is exactly similar to that of locking'the window, that is, the

screw 33 is advanced by means of the special key 'until its reduced portion 37 enters the hole 38 in screw 26 loosened so that the bottom edge of the said stop 20 rests upon the periphery'of the screwthreaded portion 16 of the screw 14, then the tapered portion 18 of the screw andthe tapered or bevelledupper edge 25 of'the'projection 25.0n the key will engage the outer edge of-the' stop'as the screw is advanced toward locking position and will force the stop upwardlyto the position illustrated in Fig. 1. Then when the key 23 is removed thestop willdrop into the annular groove 19 in the enlargedrearward,portion 14 of the screw where it may be rigidly locked in position by the set screw 26. f

'Iclaim: ,7 "v .f 1. A window and door lock having, in combination, a bracket adapted to beiastened to the lower sash of a window or to a door, a locking screw having screw-threaded engagement with said bracket, said screw having an annular roove in its periphery, a stop siidably mounted said bracket above said screw and adapted to enter said annular groove when the screw is inaniadvanced position and lock it against longitudinal movement, and means having screw-threaded engagement withsaid bracket to lock said stop in said annular groove. 1

2.' A window sash and door lock havingfln combination, a bracket adapted to be fastenedto the lower sash of a window orto adoor, a locking screw having screw-threaded engagement with said bracket, said screw. having'an annular groove in its'p'eriphery, a stop slidably mounted in said bracket abovesaid screw and adapted to enter said annular groove when the screwis in an ad vanced position and lock it against longitudinal movement, and means to lock said stop against 1 mover nent in said bracket. Q A

3. A window sash and door lock'having, in combination, a bracket adapted to be fastened to the lower sash of a window or to a doona locking screw having screw-threaded engagement with said bracket, said screw, having an annulargroove in its periphery, a stop slidably, mounted in said bracketabove said screw and adapted to enter said annular groove whent'he screw is in an ad vanced position and-lock it against longitudinal movement, and a set screw having'screw-threaded engagement withsaid bracket and positioned to engage saidstop and lock it against movement in said bracket. a r i p JOSEPH RICC ELLI; 

